login

A118400 as a triangular array

1
1-1
101
-1-1-1-1
12221
-1-3-4-4-3-1
1478741
-1-5-11-15-15-11-5-1
16162630261661
-1-7-22-42-56-56-42-22-7-1
1829649811298642981
-1-9-37-93-162-210-210-162-93-37-9-1

A118400 as a square array

111-11-11-11-11-1
-10-12-34-56-78-9
1-12-47-1116-2229-37
-12-48-1526-4264-93
1-37-1530-5698-162
-14-1126-56112-210
1-516-4298-210
-16-2264-162
1-729-93
-18-37
1-9
-1
111-11-11-11-11-1
-10-12-34-56-78-9
1-12-47-1116-2229-37
-12-48-1526-4264-93
1-37-1530-5698-162
-14-1126-56112-210
1-516-4298-210
-16-2264-162
1-729-93
-18-37
1-9
-1